Coping saw



April 10, 1928. 1,665,317

F.P. MAxsoN coPING sAw Filed DSO, 6, 1924 l20 dicated by the arrows; and

i Patented 1f),

l UNITED 4s'rA TES# FRANK 1. MAxsoN, or CHICAGO, ILLINOIS.

oorrNG SAW.

-Applicationled December 6, 1924. Serial No. 754,283.

My invention relates to coping sawsl and vhas for its object theprovision of animproved and simplified structure, particu-` larly inconnection with the means .tor hold- ..5 ingthe saw blade in the frame.

-In the laccompanying drawings,

Figure 1is,an elevational view of. the

tive purposes; f

- Figure 2 is a fragmentary sectional view, on an enlarged scale, takenon the line 2-2 of Figure l, and looking in the direction ot the arrows.Figure 3 is a .fragmentary elevational saw, parts being broken away forillustra- Aview, on an enlarged scale, looking in the direction of thearrows 3 3 of Figure 1.

vFigure 4 is a fragmentary sectional view,

on an enlarged scale, taken on the line 4% of Figure 1 and looking inthe direction in- Figure 5 is a fragmentary Sectional View, on anenlarged scale, taken on the line 5-7-5. of Figure 3 and looking in thedirectionindicated by the arrows.

The frame, of the usual U-shape, is shown at 6.. At one end this frameis provided with a heading 7 having an opening l8 therethrough throughwhich passes the threaded Astem 9 of the saw blade receiving head 1-0.The saw blade is shown at 11 and its end is held in the head l0 in thesame manner that its other end is held in the other blade receivingmember, ently.

On the other side of thel heading 7 the stem .9 threads into the handle12 lwhich ymay be turned, as is known in the art, to /caw up and tightenthe saw blade.

The other saw blade receiving member is 0 an integral piece comprising areduced -cent-ral stem 13 with headsV 14 and 15, respectively, at theends thereof.. A straplG, of

.somewhat resilient metal, fits snugly between shown in the drawings.inward slightly, as shown at X, X, so` that as will be described pres-Vthe heads 14 and l5, and receives the stem in the manner Vof a sling,lthek ends ofthe straps engaging on opposite sidesofthe frame member Theends ofthestraps .are riveted to the frame member, as indicated at 17,or aref otherwise suitably secured there'- to, the strap thus holdingthe receiving member to the end of the it may lit both thestem andtheend of the frame member and,`th`us required to be snapped over thestemin assembling, faciliftates the workin this regard. The result is asimple, effective structure, inexpensive to construct and assemble.

The end of the sawl blade extends into a slot 18 in the the blade,engagesin the obliquev cross-slot frame member, as' :The strap is benthead 15, and a pin 19, through and clamping the same lthere- 19', thusretaining the end of the saw blade.

Each of the headslO'and l5 isprovided witha pin 20 by means 4ofvwhiohthe saw l turned, on its own axis, to as-` blade can be sume anydesiredposition relativeto the frame. Y

I claim: In combination in a coping' saw,fa U- shaped trame, a

cylindrical securing `member provided at each endwith an enlarged.permanent head, a resilient strap snapped 4over the securing' memberbetween said heads and secured to vFRAN-K fr'. MAXsoN.

rone end of the frame, the inner head of said member being adapted

